I can, therefore I am.

To know oneself, one should assert oneself.

The wise does at once what the fool does at last.

Things do not happen. Things are made to happen.

Be thine own palace, or the world's thy jail.

Expect problems and eat them for breakfast.

If you think you can do it, you can.

The secret of getting ahead is getting started.

Be gentle to all and stern with yourself.